Difficulty syncing GC3 to Linear GD00Z-4

I'm pretty much stuck trying to get these two things to talk to each other. Below is what I've tried so far.

1) I upgraded to 3.0.2
2) I tried excluding then including
3) I've taken the GC3 off the wall and into the garage so that they're within about a foot of each other. Tried exclude, then include.
4) Reset GD00Z-4 by holding the link button down for 5 seconds. Then include. Reset, exclude, then include.

No idea what to try next, but I'm open to any suggestions.

Just realized I put this in the wrong forum -my apologies. Will put this in the right place.